all I know is

on my stock L3 brommie, 100psi, head down and hammering

-I do have to work harder to keep up with someone on a 700c. mostly because I can only
pull 'so hard' on those bars vs normal drop bars and position. plus once you run out the 3rd
gear, you need clips to get an effective cadence above 110. no clips....stock.

-and it steers incredibly well, so I need to be more caring with my control and steering input

-and on the cobbles and wet tracks in amsterdam, barreling along, then hitting sidewalk repairs
which are dirt and plywood cover then dirt again...I can plow that brommie through it all and
I feel safer on the brommie than my mountain bike in the city. something about it makes me ride better
if that makes any sense ? also with all the people around i can slow and stop and turn 90deg easily.
I guess because I can turn on a dime. literally. [and i am an expert norba racer.] I dunno, I just pound on the brommie and it delivers

-as a dirt trail bike, it is dog slow but servicable. tire diameter.

-I will challenge all on the brommie, and surprise most people and change thier mind about tiny wheels.
the thing smokes if you are motivated
it delivers (though in a bendy way sometimes when i really torque on it)